What should the rail pressure be on a sprinter?
If it is possible to monitor rail pressure using Live-Data, you may see the rail pressure dancing between 266 and 550 bar. Instability of pressure when holding a steady throttle will be the clue as to a problem with the fuel pressure control.
Where is the fuel pressure regulator on a 2002 sprinter?
If no or low fuel pressure the nasty little culpret may be a 25 cent o-ring. The fuel pressure regulator is located at the rear of the fuel rail on 2002 to 2004 trucks. Its held in with two little torx head screws and can be a mother to get out. It’s not terrible you just have to work by feel mostly.
Why does my Mercedes Sprinter have low pressure?
Although not completely faulty, the sensor must have been signalling incorrect pressure readings back to the ECU that was cutting the engine, when the LP pressure measurement reached its switching threshold, the engine picked up again and the whole vicious circle ensued.
When to replace fuel pressure solenoid on sprinter?
If it is and there is leakage, replace the fuel pressure solenoid. The high pressure pump is driven by the camshaft, and requires no timing. Fuel that enters the high pressure pump is pressurized between 200-1600 bar (2,900 – 23,205 psi). The pressurized fuel is then supplied to the fuel rail.
What should the fuel pressure be on a sprinter?
Sprinter Fuel Rail Pressure Regulator Problems – Poor Starting. If it is possible to monitor rail pressure using Live-Data, you may see the rail pressure dancing between 266 and 550 bar. Instability of pressure when holding a steady throttle will be the clue as to a problem with the fuel pressure control.
What causes boost to fail on Sprinter van?
Turbocharger Actuator On the modern diesel engine used in the Sprinter van, boost pressure is controller using a vane-system. The control valve for the vane system is electronically controlled and can fail. The turbocharger is still healthy, only the control valve has failed.
Why are my cranks on my sprinter not working?
Checked clear lines and NO air bubbles or foam. Got van to start after several extended cranks but died as soon as accelerator peddle pressed. Van towed back to dealership and I asked what my feed pressure and rail pressure readings are and was informed they never tested or checked as the only code is no communication with MAF sensor.
How do you remove pressure regulator from sprinter?
Identify the electrical connector and remove it, select a 1/4 drive socket wrench and appropriate small reverse torx socket and short extension. Remove the two opposing pins on the regulator flange (left and right as fitted).